I have not seen any documentation that shows the stripe colors for all five of the original TVS vacuum hoses. The manufacturer of that vacuum hose kit must have some information showing the three missing hose stripe colors.
Assuming the hoses are correctly assembled in the kit's rubber plug, the function location of corresponding TVS connector should help you find the colors.
Could you list the locations of each color in the rubber plug?
Separate related subject:
I have studied and thought about the five verses three hoses for some time now. Although Mr. Good Wrench did the T-2 mod on my '68 400HO during its warranty days, I still wonder whether the 400 Firebirds were meant to be included in the 5 to 3 port change since they were excluded from the Service Bulletin. I've been considering leaving the 3 port mod functionally yet cosmetically have a full 5-hose/port in place. (I have all the correct new hoses.)